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Vigil@nce: Python, several overflows

January 2009 by Vigil@nce

Several overflows of Python can lead to a denial of service or to
code execution.

 Gravity: 2/4
 Consequences: user access/rights, denial of service of service
 Provenance: document
 Means of attack: no proof of concept, no attack
 Ability of attacker: expert (4/4)
 Confidence: confirmed by the editor (5/5)
 Diffusion of the vulnerable configuration: high (3/3)
 Number of vulnerabilities in this bulletin: 4
 Creation date: 12/01/2009

IMPACTED PRODUCTS

 Mandriva Corporate
 Mandriva Linux
 Novell Linux Desktop
 Novell Open Enterprise Server
 OpenSUSE
 SUSE LINUX Enterprise Server
 Unix - plateform

DESCRIPTION OF THE VULNERABILITY

An attacker can create a malicious Python program or use special
data in order to generate several overflows.

An attacker can generate an integer overflow in the
audioop.ratecv() function. [grav:2/4]

An attacker can generate an integer overflow in the imageop.crop()
function. [grav:2/4; CVE-2008-4864]

An attacker can generate an integer overflow in the imageop.crop()
function, which is implemented in string_expandtabs() of
Objects/stringobject.c or unicode_expandtabs() of
Objects/unicodeobject.c. [grav:2/4; BID-33187, CVE-2008-5031]

An attacker can generate an integer overflow in the
rgbimagemodule.c file. [grav:2/4]

These overflows can, depending on the context, lead to denials of
service or to code execution.

CHARACTERISTICS

 Identifiers: BID-33187, CESA-2008-008, CVE-2008-4864,
CVE-2008-5031, MDVSA-2009:003, SUSE-SR:2009:001, VIGILANCE-VUL-8378
 Url: http://vigilance.fr/vulnerability/Python-several-overflows-8378


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